Mich. Comp. Laws § 141.106
The governing body of a public corporation by the affirmative vote of a majority of its elected members, at the meeting at which it is introduced or any subsequent meeting, may adopt an ordinance relating to the exercise of the powers granted in this act and to other matters necessary or desirable to effectuate this act, to provide for the adequate operation of a public improvement established under this act, and to insure the security of bonds issued. The adoption shall be subject to applicable statutory or charter provisions in respect to the approval or disapproval of the chief executive or other officer of the public corporation and the adoption of the ordinance over his or her veto, except in case of the adoption of an ordinance under this act by the board of commissioners of a county, it shall not be necessary to submit the ordinance to the governor for approval. An ordinance adopted under this act shall become effective upon its adoption unless otherwise specified in the ordinance. It shall not be subject to a referendum vote of the electors of the public corporation except as provided in section 33. The ordinance shall be recorded in the minutes of the meeting of the governing body of the public corporation as soon as practicable after its passage. The record shall be authenticated by the signatures of the presiding officer and the clerk or other recording officer of the governing body. The ordinance shall be published once in a newspaper of general circulation within the boundaries of the public corporation. The publication of the ordinance as a part of the minutes of the meeting at which it was adopted, shall be considered a publication in conformity with this act. Except as otherwise provided in this act, this section shall constitute the sole requirements in respect to the adoption and publication of an ordinance and shall not be limited by a charter or statutory provisions.
MCL 141.106